摘要
为了更加有效地管理和利用耕地资源,根据贵州省2001-2010年的统计资料,对全省耕地的总量和相对变化率进行分析,并采用相关分析和主成分分析法,从时间和空间上分析区域耕地面积变化特征及驱动力。结果表明:2001-2010年贵州省耕地面积减少27.05万hm2,省内各区域耕地面积变化有所差异,耕地增减的来源和流向分别以土地开发和建设占用为主;经济发展、人口和农业科技进步是耕地面积变化的三类主要驱动因素。
In order to manage and utilize cultivated land resources more effectively,according to the statistics of cultivated land of Guizhou Province from 2001 to 2010,the author analyzed the total cultivated land and relative change rate in Guizhou,and applied correlation analysis and principal component analysis to analyze the spatiotemporal changes of cultivated land and driving force.The results indicated that the cultivated land of Guizhou Province decreased by 270500 hm2 during 2001—2010.Differences of cultivated land change existed in different regions of the province,and development of cultivated land together with construction accounted respectively for the major part of cultivated land quantity fluctuation and flow direction.Economic development,population,agricultural scientific and technological progress were the main driving factors of the variation of cultivated land area.
出处
《贵州农业科学》
CAS
北大核心
2013年第3期140-145,共6页
Guizhou Agricultural Sciences
基金
贵州省科技厅重大专项"贵州粮食(水稻
玉米)高产科技‘双百’示范工程"[黔科合重大专项字(2011)6012]
贵州省土地整理中心资助项目"贵州省土地整治项目耕地质量等级评定"(H130029)
关键词
耕地
时空变化
驱动因素
贵州
cultivated land
dynamic change
driving factor
Guizhou
